:root {
  --ink: #102b35;
  --ink-2: #1a3c47;
  --cambridge: #a9cfc5;
  --cambridge-deep: #6c9f97;
  --paper: #f5f8f6;
  --white: #ffffff;
  --mist: #e3eeea;
  --line: rgba(16, 43, 53, 0.15);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow: 0 24px 70px rgba(7, 29, 38, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 16px; line-height: 1.65; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; background: var(--white); padding: 10px 16px; border-radius: 2px; }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(245, 248, 246, 0.94); border-bottom: 1px solid transparent; backdrop-filter: blur(18px); transition: border-color .2s ease; }
.site-header.scrolled { border-color: var(--line); }
.nav-wrap { min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; line-height: 1; }
.brand-mark { width: 44px; height: 44px; }
.mark-arch { fill: none; stroke: var(--ink); stroke-width: 2.2; }
.mark-step { fill: none; stroke: var(--cambridge-deep); stroke-width: 4; stroke-linecap: square; stroke-linejoin: miter; }
.brand strong { display: block; font-family: var(--serif); font-size: 1.35rem; letter-spacing: -.03em; font-weight: 600; }
.brand small { display: block; margin-top: 6px; color: var(--cambridge-deep); font-size: .7rem; letter-spacing: .26em; text-transform: uppercase; }
.brand-k { color: var(--cambridge-deep); }
nav { display: flex; align-items: center; gap: 28px; }
nav a { text-decoration: none; font-size: .89rem; font-weight: 650; }
.nav-cta { padding: 11px 18px; color: var(--white); background: var(--ink); }
.menu-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.menu-toggle > span:not(.sr-only) { display: block; width: 24px; height: 2px; margin: 5px 0; background: var(--ink); }

.hero { overflow: hidden; padding: 92px 0 88px; background: var(--paper); }
.hero-grid { display: grid; grid-template-columns: 1fr; }
.hero-copy { max-width: 1020px; }
.hero-copy h1 { max-width: 1000px; }
.hero:has(.hero-booking) { padding-block: 48px 58px; background: linear-gradient(120deg, var(--paper) 0 55%, #dceae6 55% 100%); }
.hero:has(.hero-booking) .hero-grid { grid-template-columns: .9fr 1.1fr; align-items: start; gap: 38px; }
.hero:has(.hero-booking) h1 { font-size: clamp(3rem, 5vw, 5rem); }
.hero:has(.hero-booking) .credibility { margin-top: 38px; }
.hero-booking { min-width: 0; padding: 25px; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); scroll-margin-top: 100px; }
.hero-booking .eyebrow { margin-bottom: 8px; }
.hero-booking h2 { margin-bottom: 8px; font-size: clamp(2rem, 3.1vw, 3rem); }
.hero-booking > p:not(.eyebrow):not(.booking-fallback) { margin: 0 0 16px; color: #47636a; }
.hero-booking .tidycal-embed { min-height: 500px; }
.home-paid-booking { padding-block: 72px; background: #e9f2ee; scroll-margin-top: 85px; }
.home-paid-inner { display: grid; grid-template-columns: .75fr 1.25fr; align-items: start; gap: 60px; }
.home-paid-copy { position: sticky; top: 120px; }
.home-paid-copy h2 { font-size: clamp(2.5rem, 4vw, 4rem); }
.home-paid-copy p:not(.eyebrow) { max-width: 390px; color: #47636a; }
.home-paid-copy strong { display: block; margin-top: 24px; font-family: var(--serif); font-size: 2rem; font-weight: 500; }
.home-paid-copy small { display: block; font-family: var(--sans); font-size: .9rem; font-weight: 600; }
.home-paid-calendar { min-width: 0; padding: 20px; background: var(--white); border: 1px solid var(--line); }
.home-paid-calendar .tidycal-embed { min-height: 500px; }
.eyebrow { margin: 0 0 20px; color: var(--cambridge-deep); font-size: .75rem; font-weight: 800; letter-spacing: .19em; text-transform: uppercase; }
.eyebrow.light { color: var(--cambridge); }
h1, h2, h3 { margin-top: 0; font-family: var(--serif); font-weight: 500; line-height: 1.06; letter-spacing: -.035em; }
h1 { max-width: 760px; margin-bottom: 28px; font-size: clamp(3.4rem, 6.2vw, 6.1rem); }
h1 em { color: var(--cambridge-deep); font-weight: 400; }
.hero-lead { max-width: 660px; margin: 0; color: #38525a; font-size: 1.25rem; line-height: 1.6; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 38px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; border: 1px solid transparent; padding: 13px 22px; text-decoration: none; font-weight: 750; cursor: pointer; transition: transform .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--ink); }
.button-primary:hover { background: #1b4653; }
.text-link { text-underline-offset: 5px; font-weight: 700; }
.credibility { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--line); }
.credibility strong, .credibility span { display: block; }
.credibility strong { font-family: var(--serif); font-size: clamp(2rem, 2.6vw, 2.35rem); font-weight: 500; }
.credibility span { color: #536b72; font-size: .94rem; line-height: 1.45; }

.proof-strip { color: var(--white); background: #153642; }
.proof-inner { min-height: 120px; display: grid; grid-template-columns: .8fr repeat(3, 1fr); align-items: center; gap: 28px; }
.proof-inner > p { color: var(--cambridge); font-size: .75rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.proof-item { padding-left: 28px; border-left: 1px solid rgba(255,255,255,.15); }
.proof-item strong, .proof-item span { display: block; }
.proof-item strong { font-family: var(--serif); font-size: 1.45rem; font-weight: 500; }
.proof-item span { color: #bdd0d4; font-size: .79rem; }

.section { padding: 112px 0; }
.section-heading { max-width: 780px; margin-bottom: 56px; }
.section-heading.compact { margin-bottom: 44px; }
.section-heading h2, .about-title h2, .research-intro h2, .contact-copy h2, .results-copy h2 { margin-bottom: 22px; font-size: clamp(2.55rem, 4.5vw, 4.4rem); }
.section-heading > p:last-child, .research-intro > p:last-child { max-width: 670px; color: #5a6f76; font-size: 1.08rem; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.service-card { position: relative; min-height: 560px; padding: 38px 34px; border: 1px solid var(--line); background: rgba(255,255,255,.5); }
.service-card.featured { color: var(--white); background: var(--ink); box-shadow: var(--shadow); transform: translateY(-14px); }
.service-number { display: block; margin-bottom: 72px; color: var(--cambridge-deep); font-family: var(--serif); font-size: 1.15rem; }
.featured .service-number { color: var(--cambridge); }
.service-label { margin: 0 0 11px; color: var(--cambridge-deep); font-size: .7rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.service-card h3 { margin-bottom: 22px; font-size: 2.35rem; }
.service-card h3 small { display: block; margin-top: 7px; color: #71868d; font-family: var(--sans); font-size: .67rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.service-card > p:not(.service-label) { color: #4d666e; }
.featured > p:not(.service-label) { color: #ccdadc; }
.service-card ul { margin: 26px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); list-style: none; }
.featured ul { border-color: rgba(255,255,255,.14); }
.service-card li { position: relative; margin: 10px 0; padding-left: 18px; font-size: .88rem; }
.service-card li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 1px; background: var(--cambridge-deep); }

.results-section { color: var(--white); background: var(--ink); }
.results-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 90px; align-items: start; }
.results-copy p:last-child { color: #b8cacc; font-size: 1.08rem; }
.outcome { padding: 34px 0; border-top: 1px solid rgba(255,255,255,.16); }
.outcome:first-child { padding-top: 0; border-top: 0; }
.outcome > span { color: var(--cambridge); font-size: .72rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.outcome strong { display: block; margin: 9px 0 10px; font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 500; line-height: 1.15; }
.outcome p { margin: 0; color: #b8cacc; }

.video-section { background: var(--white); }
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.video-card { border: 1px solid var(--line); background: var(--paper); }
.video-placeholder { position: relative; aspect-ratio: 16 / 9; display: grid; place-items: center; overflow: hidden; color: var(--white); background: linear-gradient(135deg, #163b48, #0c232d); }
.video-placeholder::before, .video-placeholder::after { content: ""; position: absolute; width: 54%; height: 1px; background: rgba(169,207,197,.35); transform: rotate(32deg); }
.video-placeholder::after { transform: rotate(-32deg); }
.video-placeholder.problem { background: linear-gradient(135deg, #7faea5, #315e62); }
.video-embed { aspect-ratio: 16 / 9; overflow: hidden; background: #081b22; }
.video-embed iframe { width: 100%; height: 100%; display: block; border: 0; }
.play { position: relative; z-index: 2; display: grid; width: 64px; height: 64px; place-items: center; padding-left: 5px; border: 1px solid rgba(255,255,255,.5); border-radius: 50%; background: rgba(8,31,40,.35); }
.video-status { position: absolute; z-index: 2; right: 18px; bottom: 16px; font-size: .72rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.formula { position: absolute; left: 28px; top: 24px; color: rgba(255,255,255,.32); font-family: var(--serif); font-size: 3.4rem; }
.video-copy { padding: 28px 30px 32px; }
.video-copy > span { color: var(--cambridge-deep); font-size: .7rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.video-copy h3 { margin: 8px 0 12px; font-size: 1.75rem; }
.video-copy p { margin: 0; color: #61747a; }

.social-section { padding-block: 86px; background: var(--mist); }
.social-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 80px; align-items: center; }
.social-intro h2 { margin-bottom: 18px; font-size: clamp(2.25rem, 3.8vw, 3.55rem); }
.social-intro > p:last-child { max-width: 520px; margin-bottom: 0; color: #586f76; }
.social-links { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.social-card { min-height: 215px; display: flex; flex-direction: column; justify-content: space-between; padding: 29px; border: 1px solid rgba(16,43,53,.17); color: var(--ink); background: rgba(255,255,255,.58); text-decoration: none; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; }
.social-card:hover { transform: translateY(-4px); background: var(--white); box-shadow: 0 16px 40px rgba(7,29,38,.09); }
.social-platform { color: var(--cambridge-deep); font-size: .71rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.social-card strong { font-family: var(--serif); font-size: 1.55rem; font-weight: 500; letter-spacing: -.025em; }
.social-action { display: flex; align-items: center; justify-content: space-between; padding-top: 17px; border-top: 1px solid var(--line); font-size: .8rem; font-weight: 750; }
.social-action b { font-size: 1.2rem; transition: transform .18s ease; }
.social-card:hover .social-action b { transform: translate(3px,-3px); }

.about-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 100px; }
.about-title { position: relative; }
.about-photo { margin: 48px 0 0; overflow: hidden; border: 1px solid rgba(16,43,53,.17); background: var(--white); }
.about-photo img { width: 100%; height: auto; display: block; aspect-ratio: 3 / 2; object-fit: cover; }
.about-copy > p { color: #526a72; }
.about-copy .large-copy { margin-top: 5px; color: var(--ink); font-family: var(--serif); font-size: 1.55rem; line-height: 1.45; }
.qualification-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 38px; }
.qualification-row > div { padding: 24px; border-left: 3px solid var(--cambridge); background: var(--white); }
.qualification-row span, .qualification-row strong, .qualification-row small { display: block; }
.qualification-row span { color: var(--cambridge-deep); font-size: .7rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.qualification-row strong { margin: 7px 0; font-family: var(--serif); font-size: 1.15rem; font-weight: 500; line-height: 1.25; }
.qualification-row small { color: #65767c; }
.olympiad-note { margin-top: 25px; padding-top: 20px; border-top: 1px solid var(--line); color: #65767c !important; font-size: .88rem; }
.olympiad-note strong { color: var(--ink); }

.research-section { background: #e2eeea; }
.research-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.document-card { display: grid; grid-template-columns: 70px 1fr auto; align-items: center; gap: 25px; padding: 30px 0; border-top: 1px solid rgba(16,43,53,.18); text-decoration: none; }
.document-card:last-child { border-bottom: 1px solid rgba(16,43,53,.18); }
.doc-type { display: grid; width: 58px; height: 72px; place-items: center; border: 1px solid var(--ink); font-family: var(--serif); font-size: .8rem; }
.document-card p { margin: 0; color: var(--cambridge-deep); font-size: .69rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.document-card h3 { margin: 6px 0; font-size: 1.65rem; }
.document-card div > span { color: #5c7077; font-size: .88rem; }
.doc-arrow { font-size: 1.5rem; transition: transform .18s ease; }
.document-card:hover .doc-arrow { transform: translate(4px, -4px); }

.contact-section { color: var(--white); background: #0d2731; }
.contact-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; }
.contact-copy > p:not(.eyebrow) { color: #bbcccf; }
.fee-note { margin: 42px 0 28px; padding: 25px 0; border-block: 1px solid rgba(255,255,255,.16); }
.fee-note span, .fee-note small { display: block; color: #afc2c5; }
.fee-note strong { display: block; margin: 5px 0; color: var(--cambridge); font-family: var(--serif); font-size: 3rem; font-weight: 500; }
.phone-link { display: inline-flex; flex-direction: column; color: var(--white); font-family: var(--serif); font-size: 1.35rem; text-underline-offset: 5px; }
.contact-payment-link { display: block; width: fit-content; margin: 0 0 26px; color: var(--cambridge); }
.button-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.button-outline:hover { background: var(--white); }
.booking-page { background: var(--paper); }
.booking-intro { padding-block: 82px 72px; }
.booking-page .booking-intro { padding-block: 42px 20px; }
.booking-page .booking-intro h1 { margin-bottom: 12px; }
.booking-page .booking-intro p:last-child { margin-bottom: 0; }
.booking-page .booking-first { padding-top: 32px; border-top: 0; }
.booking-intro h1 { max-width: 850px; font-size: clamp(3rem, 5.5vw, 5.5rem); }
.booking-intro > p:not(.eyebrow) { max-width: 760px; color: #38525a; font-size: 1.15rem; }
.booking-jump { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.booking-section { padding-block: 70px 90px; border-top: 1px solid var(--line); scroll-margin-top: 85px; background: var(--white); }
.booking-section-alt { background: #e9f2ee; }
.booking-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.booking-heading .eyebrow { margin-bottom: 12px; }
.booking-heading h2 { margin: 0; font-size: clamp(2.3rem, 4vw, 3.8rem); }
.booking-heading h3 { margin: 0; font-size: clamp(2.2rem, 3.6vw, 3.3rem); }
.site-booking-section { background: #e9f2ee; scroll-margin-top: 85px; }
.site-booking-option { max-width: 960px; margin-inline: auto; padding: 34px; background: var(--white); border: 1px solid var(--line); }
.site-booking-option + .site-booking-option { margin-top: 34px; }
.site-booking-option, #trial-booking, #paid-booking { scroll-margin-top: 100px; }
.site-booking-option .booking-embed { padding: 0; border: 0; }
.booking-heading > strong { flex-shrink: 0; font-family: var(--serif); font-size: 2rem; font-weight: 500; }
.booking-heading small { font-family: var(--sans); font-size: .8rem; font-weight: 600; }
.booking-description { max-width: 760px; margin: 23px 0 28px; color: #47636a; }
.booking-embed { min-height: 500px; padding: 12px; border: 1px solid var(--line); background: var(--white); }
.booking-fallback { margin: 16px 0 0; color: #4d666e; font-size: .9rem; }
.booking-fallback a { text-underline-offset: 4px; }
.booking-enquiry { padding-block: 70px; color: var(--white); background: var(--ink); }
.booking-enquiry h2 { margin-bottom: 12px; font-size: clamp(2rem, 3.4vw, 3rem); }
.booking-enquiry p { margin-bottom: 24px; color: #c5d8d7; }
.booking-enquiry .button-light { color: var(--ink); background: var(--cambridge); }
.phone-link span { color: var(--cambridge); font-family: var(--sans); font-size: .7rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.payment-page { min-height: calc(100vh - 220px); padding-block: 95px 115px; background: linear-gradient(125deg, var(--paper) 0 70%, #dceae6 70% 100%); }
.payment-layout { display: grid; grid-template-columns: 1fr .82fr; gap: clamp(40px, 7vw, 105px); align-items: center; }
.payment-intro h1 { font-size: clamp(3.2rem, 5.6vw, 5.5rem); }
.payment-intro > p:not(.eyebrow) { max-width: 630px; color: #38525a; font-size: 1.16rem; }
.payment-note { margin-top: 32px; padding-top: 23px; border-top: 1px solid var(--line); color: #526a72; font-size: .95rem; }
.payment-note strong { color: var(--ink); }
.payment-card { padding: clamp(30px, 4vw, 52px); border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow); }
.payment-card-label { margin: 0 0 18px; color: var(--cambridge-deep); font-size: .73rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.payment-card h2 { margin-bottom: 20px; font-size: clamp(2.1rem, 3vw, 3.1rem); }
.payment-price { display: block; margin-bottom: 4px; font-family: var(--serif); font-size: clamp(3.2rem, 5vw, 4.7rem); line-height: 1; }
.payment-duration { display: block; padding-bottom: 27px; border-bottom: 1px solid var(--line); color: #607178; }
.payment-card .button { width: 100%; margin-top: 28px; }
.payment-card-detail { margin: 16px 0 0; color: #607178; font-size: .85rem; }
.payment-return { display: inline-block; margin-top: 22px; }
.enquiry-form { padding: 42px; color: var(--ink); background: var(--white); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { display: block; margin-bottom: 19px; font-size: .78rem; font-weight: 750; }
input, select, textarea { width: 100%; margin-top: 7px; border: 1px solid #c6d2d2; border-radius: 0; padding: 12px 13px; color: var(--ink); background: #fbfcfb; font-size: 1rem; }
textarea { min-height: 142px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(169,207,197,.45); border-color: var(--cambridge-deep); }
.button-light { color: var(--white); background: var(--ink); }
.form-note { margin: 13px 0 0; color: #697b80; font-size: .75rem; }

footer { padding: 42px 0; color: #adbec1; background: #071b23; }
.footer-grid { display: grid; grid-template-columns: 1fr 1.5fr 1.4fr auto; gap: 28px; align-items: center; }
.footer-brand { color: var(--white); }
.footer-grid p { margin: 0; font-size: .76rem; line-height: 1.5; }
.legal { color: #789096; }

.groups-hero { padding: clamp(76px, 9vw, 130px) 0 95px; background: linear-gradient(120deg, var(--paper) 0 66%, #deebe7 66%); }
.groups-intro { max-width: 850px; }
.groups-intro h1 { max-width: 820px; margin-bottom: 25px; font-size: clamp(3.3rem, 6vw, 6rem); }
.groups-intro > p:not(.eyebrow) { max-width: 700px; color: #38525a; font-size: 1.2rem; }
.groups-intro .hero-actions { margin-top: 32px; }
.groups-overview { padding-block: 75px; color: var(--white); background: var(--ink); }
.groups-overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: start; }
.groups-overview h2 { margin-bottom: 0; font-size: clamp(2.5rem, 4vw, 4rem); }
.groups-overview p:not(.eyebrow) { margin: 0; color: #c5d8d7; font-size: 1.1rem; }
.groups-programmes { padding-block: 100px 115px; }
.groups-programmes .section-heading { margin-bottom: 38px; }
.group-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); align-items: stretch; gap: 18px; }
.group-card { min-height: 410px; display: flex; flex-direction: column; padding: 35px; border: 1px solid var(--line); background: var(--white); }
.group-card.current { color: var(--white); background: var(--ink); }
.group-card .eyebrow { margin-bottom: 45px; }
.group-card.current .eyebrow { color: var(--cambridge); }
.group-card h3 { margin-bottom: 16px; font-size: 2.35rem; }
.group-card > p:not(.eyebrow) { margin: 0 0 30px; color: #526a72; }
.group-card.current > p:not(.eyebrow) { color: #c5d8d7; }
.classroom-details { color: #526a72; }
.group-card.current .classroom-details { color: #c5d8d7; }
.classroom-details p { margin: 0 0 16px; }
.classroom-details ul { margin: 0 0 23px; padding-left: 19px; }
.classroom-details li + li { margin-top: 9px; }
.classroom-details li::marker { color: var(--cambridge-deep); }
.group-card.current .classroom-details li::marker { color: var(--cambridge); }
.step-skool-link { align-self: flex-start; color: var(--ink); background: var(--cambridge); text-decoration: none; }
.pending-link { align-self: flex-start; color: #50666d; border-color: #d3dedc; background: #e8efed; cursor: default; }
.group-card > .step-skool-link, .group-card > .pending-link { margin-top: auto; }
.pending-link:hover { transform: none; }
.classroom-video { width: min(100%, 220px); aspect-ratio: 9 / 16; margin: 28px auto 0; background: #081b22; }
.classroom-video iframe { display: block; width: 100%; height: 100%; border: 0; }

@media (min-width: 761px) and (max-width: 1140px) {
  .nav-wrap { gap: 16px; }
  nav { gap: 15px; }
  nav a { font-size: .82rem; }
}

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .button, .doc-arrow { transition: none; }
}

@media (max-width: 960px) {
  .groups-overview-grid { grid-template-columns: 1fr; gap: 27px; }
  .group-card-grid { grid-template-columns: 1fr; }
  .group-card { min-height: 310px; }
  .group-card .eyebrow { margin-bottom: 30px; }
  .hero-grid, .results-grid, .social-grid, .about-grid, .research-grid, .contact-grid, .payment-layout { grid-template-columns: 1fr; gap: 55px; }
  .hero:has(.hero-booking) .hero-grid, .home-paid-inner { grid-template-columns: 1fr; }
  .home-paid-copy { position: static; }
  .hero { background: var(--paper); }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .service-card.featured { transform: none; }
  .service-number { margin-bottom: 35px; }
  .proof-inner { grid-template-columns: 1fr 1fr; padding-block: 25px; }
  .proof-inner > p { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .groups-hero { padding-block: 65px 75px; background: linear-gradient(165deg, var(--paper) 0 80%, #deebe7 80%); }
  .groups-intro > p:not(.eyebrow) { font-size: 1.08rem; }
  .groups-overview { padding-block: 65px; }
  .groups-programmes { padding-block: 75px; }
  .group-card { min-height: 280px; padding: 28px; }
  .shell { width: min(100% - 28px, 1180px); }
  .nav-wrap { min-height: 72px; }
  .menu-toggle { display: block; }
  nav { position: absolute; top: 72px; left: 0; right: 0; display: none; align-items: stretch; gap: 0; padding: 12px 20px 20px; border-bottom: 1px solid var(--line); background: var(--paper); }
  nav.open { display: grid; }
  nav a { padding: 13px 8px; }
  .nav-cta { margin-top: 7px; text-align: center; }
  .hero { padding: 62px 0 58px; }
  .hero:has(.hero-booking) { padding-block: 34px 44px; }
  .hero:has(.hero-booking) .hero-grid { gap: 30px; }
  .hero:has(.hero-booking) .hero-booking { order: -1; }
  .hero-booking { padding: 18px; }
  .home-paid-booking { padding-block: 55px; }
  .home-paid-calendar { padding: 10px; }
  h1 { font-size: clamp(3rem, 14vw, 4.8rem); }
  .hero-lead { font-size: 1.08rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .credibility { grid-template-columns: 1fr; }
  .credibility div { display: grid; grid-template-columns: 130px 1fr; align-items: baseline; }
  .proof-inner { grid-template-columns: 1fr; gap: 18px; }
  .proof-item { padding: 17px 0 0; border-top: 1px solid rgba(255,255,255,.15); border-left: 0; }
  .section { padding: 82px 0; }
  .payment-page { padding-block: 68px 88px; }
  .booking-intro { padding-block: 62px 55px; }
  .booking-section { padding-block: 54px 70px; }
  .booking-heading { align-items: start; flex-direction: column; gap: 9px; }
  .booking-heading > strong { font-size: 1.5rem; }
  .booking-embed { padding: 0; }
  .site-booking-option { padding: 22px 16px; }
  .section-heading h2, .about-title h2, .research-intro h2, .contact-copy h2, .results-copy h2 { font-size: 2.65rem; }
  .video-grid, .social-links, .qualification-row, .form-row { grid-template-columns: 1fr; }
  .document-card { grid-template-columns: 58px 1fr auto; gap: 16px; }
  .document-card div > span { display: none; }
  .enquiry-form { padding: 28px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
}